Selection of high transfer stability and optimal power‑efficiency tradeoff with respect to distance region for underground wireless power transfer systems

Magnetic resonant wireless power transfer (MR-WPT) has become a significant method for powering the measurement units in landslide monitoring boreholes. This paper focuses on the effects of quality factor, coupling distance and load on the power transfer stability, sensitivity and performance of an MR-WPT system. Firstly, through a numerical model of an MR-WPT, the effect of quality factor and coupling distance on the output power, transfer efficiency and frequency splitting phenomenon of MR-WPT systems have been comparatively analyzed. The relationship between the load and the coupling distance region corresponding to optimal transfer performance has been studied. Results show that improving the quality factor of the coils is beneficial for the transfer performance and stability of WPT system. Furthermore, through the selection of the load, a coupling distance region with high transfer stability and an optimal tradeoff between power and efficiency can be obtained. Finally, the above theoretical simulation results have been verified by experimental results.

Statistics

Show / Hide Statistics

Cumulative Counts from September 30th, 2019
Multiple requests among the same browser session are counted as one view. If you mouse over a chart, the values of data points will be shown.

Cite this article

[IEEE Style]

Y. Xu, Q. Chen, D. Tian, Y. Zhang, B. Li, H. Tang, "Selection of high transfer stability and optimal power‑efficiency tradeoff with respect to distance region for underground wireless power transfer systems," Journal of Power Electronics, vol. 20, no. 6, pp. 1662-1671, 2020. DOI: 10.1007/s43236-020-00156-x.

[ACM Style]

Yu Xu, Qili Chen, Detian Tian, Yongquan Zhang, Bo Li, and Huiming Tang. 2020. Selection of high transfer stability and optimal power‑efficiency tradeoff with respect to distance region for underground wireless power transfer systems. Journal of Power Electronics, 20, 6, (2020), 1662-1671. DOI: 10.1007/s43236-020-00156-x.